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hep-ph2026
Cosmological Consequences of a Highly Decoupled Right-handed Neutrino
Stephen F. King, Rishav Roshan, Sudipta Show
In the minimal type-I seesaw, one right-handed neutrino (RHN) can decouple from neutrino mass generation. Such a state is usually neglected, yet its feeble couplings make it long-l…
astro-ph.CO2026
Constraints on the inflationary vacuum and reheating era from NANOGrav
Debtosh Chowdhury, Rounak Nath, Sudipta Show
NANOGrav and various pulsar timing array experiments recently reported compelling evidence for a stochastic gravitational wave background (SGWB). Such a background may originate fr…